Benzinga's Top #PreMarket Gainers

Receptos

shares jumped 35.07% to $3.89 in pre-market trading following Monday's announcement that RPC1063 has met primary efficacy endpoint. Achillion Pharmaceuticals

shares gained 20.47% to $5.12 in pre-market trading after jumping 47.57% on Monday. The company reported the initiation of ACH-3422 dosing in HCV-infected patients. Avanir Pharmaceuticals

jumped 7.49% to $5.74 in pre-market trading after the company reported positive outcome of Phase IIIb COMPASS Trial. International Game Technology

soared 2.59% to $14.68 in the pre-market trading on a report from Reuters that the company was exploring a sale and had hired Morgan Stanley as an adviser, according to sources.